| Date | Name | Title | Action | No Shares | Price Per Share |
|---|---|---|---|---|---|
Insider Transactions For OTTR | |||||
| 2026-04-13 | Wahlund, Todd R | Senior Vice President | Purchased | 300 | $0.00 |
| 2026-04-13 | Rogelstad, Timothy J | President | Purchased | 1400 | $0.00 |
| 2026-04-13 | Webb, Thomas J | Director | Purchased | 1500 | $0.00 |
| 2026-04-13 | Crain, Jeanne H | Director | Purchased | 1500 | $0.00 |
| 2026-04-13 | Partain, Nathan I | Director | Purchased | 2000 | $0.00 |
| 2026-04-13 | Lebeau, Michael E | Director | Purchased | 1500 | $0.00 |
| 2026-04-13 | Clark, Christopher B | Director | Purchased | 1900 | $0.00 |
| 2026-04-13 | Rasche, Steven P | Director | Purchased | 1900 | $0.00 |
| 2026-04-13 | Erickson, John D | Director | Purchased | 1500 | $0.00 |
| 2026-04-13 | Ludford, Mary E | Director | Purchased | 1500 | $0.00 |
| 2026-04-13 | Johnson, Kathryn O | Director | Purchased | 1500 | $0.00 |
| 2026-04-13 | Nelson, Tyler J | VP, Chief Financial Officer | Purchased | 800 | $0.00 |
| 2026-04-13 | Smestad, Jennifer O. | SVP General Counsel & Corp Sec | Purchased | 5800 | $0.00 |
| 2026-04-08 | Wahlund, Todd R | Chief Financial Officer | Purchased | 460 | $90.11 |
| 2026-04-08 | Wahlund, Todd R | Chief Financial Officer | Sold | 460 | $0.00 |
| 2026-04-08 | Wahlund, Todd R | Chief Financial Officer | Sold | 186 | $90.11 |
| 2026-02-11 | Macfarlane, Charles S | President & CEO | Sold | 23515 | $86.43 |
| 2026-02-11 | Macfarlane, Charles S | President & CEO | Purchased | 47700 | $86.43 |
| 2026-02-11 | Rogelstad, Timothy J | Sr VP, Electric Platform | Sold | 4212 | $86.43 |
| 2026-02-11 | Rogelstad, Timothy J | Sr VP, Electric Platform | Purchased | 8400 | $86.43 |